Two Decimal Places Using C#

Two Decimal places using c#

If you want to round the decimal, look at Math.Round()

How do I display a decimal value to 2 decimal places?

decimalVar.ToString("#.##"); // returns ".5" when decimalVar == 0.5m

or

decimalVar.ToString("0.##"); // returns "0.5"  when decimalVar == 0.5m

or

decimalVar.ToString("0.00"); // returns "0.50"  when decimalVar == 0.5m

Rounding a variable to two decimal places C#

Use Math.Round and specify the number of decimal places.

Math.Round(pay,2);

Math.Round Method (Double, Int32)

Rounds a double-precision floating-point value to a specified number
of fractional digits.

Or Math.Round Method (Decimal, Int32)

Rounds a decimal value to a specified number of fractional digits.

Using String Format to show decimal up to 2 places or simple integer

An inelegant way would be:

var my = DoFormat(123.0);

With DoFormat being something like:

public static string DoFormat( double myNumber )
{
    var s = string.Format("{0:0.00}", myNumber);

    if ( s.EndsWith("00") )
    {
        return ((int)myNumber).ToString();
    }
    else
    {
        return s;
    }
}

Not elegant but working for me in similar situations in some projects.

Round double in two decimal places in C#?

This works:

inputValue = Math.Round(inputValue, 2);

Formatting a double to two decimal places

string.Format will not change the original value, but it will return a formatted string. For example:

Console.WriteLine("Earnings this week: {0:0.00}", answer);

Note: Console.WriteLine allows inline string formatting. The above is equivalent to:

Console.WriteLine("Earnings this week: " + string.Format("{0:0.00}", answer));

Display two decimal places for a string value

You'll probably want to try something like:

double get_amt = 0;

if (dt_.Rows[i]["billing_amt"] != DBNull.Value)
    get_amt = Convert.ToDouble(dt_.Rows[i]["billing_amt"]);

Then:

string.Format("{0:0.00}", get_amt)  

should work.

It's currently not working as it's a string value your trying to format - which wont have decimal places.

C# Round Up Two Decimal Places in C#?

Try Ceiling method:

1. Scale the value up: 6.3619 -> 636.19
2. Truncate with a help of Math.Ceiling: 636.19 -> 637
3. Finally, scale the result down: 637 -> 6.37

Code:

 var result = Math.Ceiling(value * 100.0) / 100.0;

Demo:

double[] tests = new double[] {
  6.3619,
  5.12003,
};

string report = string.Join(Environment.NewLine, tests
  .Select(test => $"{test,10} -> {Math.Ceiling(test * 100) / 100.0}"));

Console.Write(report);

Outcome:

  6.3619 -> 6.37
 5.12003 -> 5.13

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